Answer:
d definetly d
Step-by-step explanation:
Answer:
288
Explanation:
As first term in sequence is 3 so multiplying it by common ratio 5 we get 15, then multiplying 15 by 5 we get 45 and so on the sequence is
<span>3,15,45,225</span>
whose sum is 288
13
Explanation: a^2 + b^2 = c^2
12^2 + 5^2 = c^2
144 + 25 = c^2
/169 = c
c = 13
V= 1/3 Area of base times Height
so, 483 (3)^1/2 =1/3 A (16 cm)
1/3(1/2b^2)16cm = 483(3)^1/2
solve for b to get the sides and it is = 17.7 or 18 approximate.
Step-by-step explanation:
Two angles are called supplementary when their measures add up to 180 degrees.
<ADB + <BDC = 180°
IT'S seen that BOTH ADB and BDC are 90 degrees
90+90= 180
